Mobile/WhatsApp: +86-138-0121-3978 
  • twitter
  • facebook
  • linkedin
Precision Refractory Metal Materials & Custom Components Manufacturer
English
English Chinese Simplified French German Portuguese Spanish Russian Japanese Korean Arabic Turkish Italian Indonesian Polish Hindi Dutch Malay Persian Thai Vietnamese
Leave Your Message
Tantalum Foils (1).jpg
Tantalum Foils (2).png
Tantalum Foils (3).png
Tantalum Foils (4).png

Pure Tantalum Foils & Strips - Specialized Solutions for Industrial & Laboratory Applications

R05200 pure tantalum foils and strips are thin-gauge sheet products processed through multiple precision procedures including vacuum melting, hot rolling, cold rolling, and annealing, using high-purity commercially pure tantalum (Ta content ≥ 99.95%, complying with American Standard R05200 grade) as the raw material. Generally, products with a thickness of ≤ 0.1mm are classified as foils, while those with a thickness of 0.1-1.5mm are strips. As a classic American Standard grade of high-purity tantalum-based materials, R05200 boasts core advantages such as extreme corrosion resistance (exhibiting strong tolerance to most strong acids, alkalis, molten salts, and high-temperature gases except hydrofluoric acid, maintaining long-term stability in strong corrosive media without contaminating contact substances), excellent high-temperature stability (melting point up to 2996℃, capable of long-term stable operation below 1400℃ and short-term resistance to 1800℃ high temperature), ultra-pure impurity-free material, excellent ductility, and outstanding electrical and thermal conductivity. These characteristics make it a core material in fields with high requirements for material thickness accuracy, surface quality, and extreme environment adaptability. It is particularly suitable for application scenarios involving thin specifications, high precision, strong corrosion, and high-temperature working conditions, widely serving high-end fields such as the electronics industry, chemical industry, aerospace, and laboratory research.

    Contact us

    Product specification

    Product Parameters
    Product Information

    Item

    Regular Parameter Details (Pure Tantalum Foils)

    Regular Parameter Details (Pure Tantalum Strips)

    Custom Parameter Range

    Thickness

    0.025mm—0.1mm

    0.1mm—1.5mm

    0.025mm—2.0mm, customizable according to customer requirements

    Width

    10mm—300mm

    10mm—500mm

    500mm and above, customizable according to customer requirements

    Length

    1000mm—5000mm (single sheet); 50m—200m (coil)

    1000mm—6000mm (single sheet); 50m—1000m (coil)

    Customizable on demand (both single sheets and coils available)

    Tolerance Range

    Thickness tolerance: ±0.001mm—±0.01mm; Width tolerance: ±0.1mm—±0.5mm (complying with ASTM B708 American Standard)

    Thickness tolerance: ±0.01mm—±0.05mm; Width tolerance: ±0.1mm—±1.0mm (complying with ASTM B708 American Standard)

    Tolerance can be customized according to customer precision requirements

    Surface Roughness

    Polished surface: Ra≤0.1μm; Bright annealed surface: Ra≤0.6μm

    Polished surface: Ra≤0.3μm; Bright annealed surface: Ra≤0.8μm

    Surface roughness requirements can be customized on demand
    Product Name  Pure Tantalum Foils, Pure Tantalum Strips
    Brand Name  Yunjie (Yunjie)
    Model  R05200 (American Standard)
    Material  High-purity tantalum (commercially pure tantalum, complying with American Standard R05200 grade)
    Manufacturing Process  Vacuum melting, hot rolling, cold rolling, annealing, finishing, surface treatment
    Minimum Tantalum Content  Meeting American Standard R05200 high-purity grade requirements (Ta content ≥ 99.95%)
    Density  16.6g/cm³
    Advantages  Extreme corrosion resistance, excellent high-temperature stability, superior electrical and thermal conductivity, ultra-pure material without impurities, outstanding ductility, strict dimensional accuracy, excellent surface finish
    Surface Conditions  Pickled surface, bright annealed surface, cold-rolled bright surface
    Delivery Conditions  Soft state (M), hard state (Y)
    Processing Services  Dimension customization (width, thickness, length), slitting, cutting, stamping forming, welding processing
    Minimum Order Quantity  1kg (calculated based on actual orders; preferential policies available for bulk purchases)

    Classification

    High-Quality Pure Tantalum Foils (1)
    • Classification by Product Form
    • Classification by Processing State
    • Classification by Surface Treatment Method
      •Pickled Surface Pure Tantalum Foils & Strips: Thoroughly remove surface oxide scale and impurities, with high surface cleanliness and further improved corrosion resistance. Suitable for scenarios requiring high surface purity such as chemical corrosion-resistant equipment and laboratory environments.
      •Bright Annealed Surface Pure Tantalum Foils & Strips: Bright and flat surface after annealing, low oxidation degree, and can be directly used without subsequent polishing. Suitable for electronic components and accessories with high appearance requirements.
      •Cold-Rolled Bright Surface Pure Tantalum Foils & Strips: Retain the natural surface after cold rolling, with high dimensional accuracy. Suitable for scenarios with low surface appearance requirements and emphasis on processability (such as substrates for subsequent coating and composite processing).

    Specification Selection Table and Composition Table

    Pure Tantalum Plates & Sheets Specification Selection Table
    Chemical Composition Table

    Product Type

    Specification Range

    Core Features

    Applicable Scenarios

    Laboratory-Grade Precision Pure Tantalum Foils

    Thickness: 0.025-0.05mm; Width: 10-300mm; Length: 100-5000mm (single sheet/coil)

    Ultra-pure material (Ta≥99.95%), minimal thickness tolerance, smooth and impurity-free surface, excellent ductility, easy to cut and form

    Precision laboratory equipment, superconducting material R&D, micro-sensor components, university research projects, special material test substrates

    Industrial-Grade General-Purpose Pure Tantalum Foils

    Thickness: 0.05-0.1mm; Width: 10-500mm; Length: 500-5000mm (single sheet)/50-500m (coil)

    High dimensional accuracy, clean surface, excellent corrosion resistance, stable processability, available in bulk supply

    Electrodes of high-temperature electronic components, small corrosion-resistant parts, precision instrument accessories, metal composite substrates, battery current collectors

    Industrial-Grade Standard Pure Tantalum Strips

    Thickness: 0.1-0.8mm; Width: 10-500mm; Length: 1000-6000mm (single sheet)/50-1000m (coil)

    Combines strength and flexibility, stable high-temperature performance, good welding performance, high slitting accuracy

    Chemical corrosion-resistant pipe fittings, battery current collectors, small aerospace structural parts, mechanical seals, basic medical device components

    Customized Pure Tantalum Foils & Strips

    Customized according to customer drawings (thickness, width, length, surface roughness)

    Strong adaptability, performance optimized on demand, high degree of personalization, strictly matching customer equipment and process requirements

    Special specification electronic devices, customized high-temperature equipment, high-end equipment supporting parts, special experimental devices, special anti-corrosion projects

    Grade

    Impurity Content, Max. (≤)

    Ta

    Fe

    Si

    Ni

    C

    N

    O

    H

    Nb

    R05200

    ≥99.95

    0.01

    0.005

    0.01

    0.01

    0.01

    0.015

    0.0015

    0.1

    W

    Mo

    Ti

    　

    　

    　

    　

    　

    0.05

    0.02

    0.01

    　

    　

    　

    　

    　

    Characteristics

    01
    Extreme Corrosion Resistance
    Exhibits strong stability in harsh environments such as strong acids (except hydrofluoric acid), alkalis, molten salts, and high-temperature oxidizing atmospheres. The dense oxide film formed on the surface can effectively resist corrosion without contaminating the contact medium, making it the preferred thin-gauge material for strong corrosive environments.
    advantage-2
    02
    Excellent High-Temperature Stability
    Pure tantalum has a melting point of up to 2996℃, capable of long-term stable operation below 1400℃ and short-term resistance to 1800℃ high temperature. It can maintain good mechanical properties and corrosion resistance in high-temperature environments, adapting to medium-high temperature and extreme high-temperature working conditions.
    advantage-2
    03
    Ultra-Pure Material Without Impurities
    Complying with American Standard R05200 high-purity grade requirements, with tantalum content ≥ 99.95% and extremely low impurity content. It will not undergo chemical reactions with contact materials, ensuring the safety and stability of product use, especially suitable for scenarios with strict requirements on material purity such as high-precision electronics, laboratories, and superconductivity.
    advantage-2
    04
    Outstanding Processability
    Boasting excellent ductility, it can achieve ultra-thin rolling (minimum thickness up to 0.01mm) and various secondary processing such as stamping, cutting, bending, welding, and slitting, meeting the preparation needs of parts with different shapes and specifications.
    advantage-2
    05
    High-Precision Dimensional Control
    Through precision cold rolling and finishing processes, it has minimal thickness and width tolerances, high surface flatness, and good dimensional consistency, which can accurately match the assembly requirements of high-end equipment and improve the performance stability of end products.
    advantage-2
    06
    Excellent Surface Quality
    Various surface treatment processes can meet different finish requirements, with no oxide scale, scratches, or impurities on the surface. It not only improves corrosion resistance but also meets the high-end surface appearance requirements in fields such as electronics, optics, and aerospace.
    advantage-2

    Production Process

    1. Raw Material Preparation: Tantalum ore is processed through mineral processing, enrichment, reduction, and other processes to extract high-purity tantalum sponge, which is then refined and melted multiple times in a vacuum arc furnace to produce high-purity tantalum ingots (Ta content ≥ 99.95%, uniform composition, extremely low impurity content) complying with American Standard R05200 grade.
    2. Hot Rolling Processing: The tantalum ingot is heated to a specific temperature and then hot-rolled into a tantalum billet with uniform thickness, eliminating internal defects of the ingot and improving material density.
    3. Cold Rolling Processing: According to the required finished product thickness, the hot-rolled billet undergoes multiple passes of cold rolling, with precise control of the reduction amount per pass, and gradually rolled into a pure tantalum foil/strip billet close to the finished product specification to ensure dimensional accuracy.
    4. Intermediate Annealing: Intermediate annealing is inserted during the cold rolling process to eliminate processing internal stress, restore material plasticity, and avoid cracking, deformation, and other problems in subsequent processing.
    High-Quality Pure Tantalum Foils (1)
    High-Quality Pure Tantalum Foils (2)

    Production Process

    1. Finished Product Annealing: According to the customer's required processing state (soft state, hard state), the cold-rolled pure tantalum foils and strips undergo finished product annealing treatment, with precise control of annealing temperature and holding time to ensure that the material performance meets the requirements.
    2. Surface Treatment: The annealed pure tantalum foils and strips are subjected to surface treatment, which can choose pickling (removing oxide scale) or bright annealing (improving surface finish) to ensure surface quality.
    3. Finishing and Inspection: The finished products are trimmed, slit, and cut to meet customer size requirements; subsequent strict inspections are carried out, including composition re-inspection, dimensional accuracy testing, surface quality testing, mechanical performance testing, etc., to ensure that the product quality meets the requirements of American Standard R05200 grade and ASTM B708 standard, with attached material inspection reports and quality certificates.

    Application Fields

    01
    Electronics Industry
    Electrodes of high-temperature electronic components, semiconductor device packaging materials, superconducting material substrates, high-end battery current collectors, precision capacitor electrodes. Relying on high purity, high conductivity, and high-temperature stability, it ensures the stable operation of electronic devices in extreme environments.
    6511419c2763338526
    02
    Chemical Industry
    Liners for conveying pipelines of strong corrosive media, anti-corrosion coatings for chemical reactors, seals for precision chemical instruments, components of strong acid and alkali treatment equipment. Utilizing extreme corrosion resistance to extend equipment service life and improve production safety.
    6511419c2763338526
    03
    Laboratory Research
    Precision experimental devices, special material R&D substrates, high-temperature micro-reaction vessels, corrosion environment simulation test components. The pure material is free from impurity contamination, ensuring experimental accuracy and data reliability.
    6511419c2763338526
    04
    Aerospace
    Small structural parts, high-temperature corrosion-resistant accessories, lightweight composite material substrates, components of spacecraft thermal protection systems. Combining high strength and extreme environment tolerance, it adapts to the strict requirements of the aerospace field.
    6511419c2763338526
    05
    Medical Devices
    Small medical corrosion-resistant parts, precision medical instrument accessories, biological fluid contact parts. Resistant to biological fluid corrosion, the material is safe and non-toxic, complying with medical device hygiene standards.
    6511419c2763338526
    06
    New Energy Field
    High-temperature fuel cell components, seals for hydrogen energy-related equipment, superconducting energy storage materials, core components of high-end batteries. Adapting to the purity and corrosion resistance requirements of new energy materials, it improves the performance and safety of energy equipment.
    6511419c2763338526

    Send Inquiry

    As a professional expert providing solutions for pure tantalum (R05200, complying with ASTM B708 American Standard) and various metal foils/strips, pipes, rods/wires, plates, and crucibles, Baoji Yunjie is always at your service! For a full range of metal materials and products such as titanium, tantalum, niobium, zirconium, nickel, aluminum, tungsten, and cobalt, please feel free to contact us!